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234473140 = 225111065787
BaseRepresentation
bin11011111100111…
…00011010110100
3121100012110200101
431332130122310
5440011120030
635133323444
75544663106
oct1576343264
9540173611
10234473140
11110399160
1266636584
1339767305
14231d7576
15158b87ca
hexdf9c6b4

234473140 has 24 divisors (see below), whose sum is σ = 537157152. Its totient is φ = 85262880.

The previous prime is 234473111. The next prime is 234473221. The reversal of 234473140 is 41374432.

It is a junction number, because it is equal to n+sod(n) for n = 234473099 and 234473108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532674 + ... + 533113.

It is an arithmetic number, because the mean of its divisors is an integer number (22381548).

Almost surely, 2234473140 is an apocalyptic number.

234473140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234473140 is an abundant number, since it is smaller than the sum of its proper divisors (302684012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

234473140 is a wasteful number, since it uses less digits than its factorization.

234473140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065807 (or 1065805 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 234473140 is about 15312.5157959102. The cubic root of 234473140 is about 616.6390631261.

It can be divided in two parts, 234 and 473140, that added together give a palindrome (473374).

The spelling of 234473140 in words is "two hundred thirty-four million, four hundred seventy-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 1065787 2131574 4263148 5328935 10657870 11723657 21315740 23447314 46894628 58618285 117236570 234473140